Procedure for Steering Cylinder Internal Leakage
Test:
4. Turnthesteering wheel forarightturn(clockwise) so
the steering cylinder rod is fully extended.
The steering cylinder internal leakage test should be
performed if a steering problem is identified. This test
will determine if the steering cylinder is faulty.
5. Remove hydraulic hose from the fitting on the rod
end of the steering cylinder. Plug the end of the hose.
6.
With the engine off, continue turning the steering
NOTE: Steering circuit operation will be affected by
rear tire pressure, steering cylinder binding, extra
weightonthevehicleand/orbindingofrearaxlesteering
components. Make sure that these items are checked
before proceeding with steering cylinder internal leak-
age test.
wheel for a right turn (clockwise) with the steering cylin-
derfullyextended.Observe theopenfittingonthesteer-
ing cylinder as the wheel is turned. If oil comes out ofthe
fitting while turning the steering wheel to the right, the
steering cylinder has internal leakage and must be re-
paired or replaced.
1.
perature.
Make sure hydraulic oil is at normal operating tem-
7. Remove plug from the hydraulic hose. Reconnect
hose to the steering cylinder fitting.
2.
(or implement) lowered and P.T.O. switch off. Make sure
engine is off. Set the parking brake.
Parkmachineonalevelsurfacewiththecuttingdeck
8. If a steering problem exists and the steering cylinder
tested acceptably, steering control valve requires ser-
vice (see Steering Control Valve and Steering Control
Valve Service in the Service and Repairs section).
3.
Read Precautions For Hydraulic Testing.
CAUTION
Before opening hydraulic system, operate all
hydraulic controls to relieve system pressure
and avoid injury from pressurized hydraulic oil.
Groundsmaster 3280--D/3320
Page 5 -- 25
Hydraulic System
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